High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

Datasheet

14.5.2.15Port x MAC Receive Pause Frame Count Register (MAC_RX_PAUSE_CNT_x)

Register #:

Port0: 041Ch

Size:

32 bits

 

Port1: 081Ch

 

 

 

Port2: 0C1Ch

 

 

This register provides a counter of valid received pause frame packets. The counter is cleared upon being read.

BITS

DESCRIPTION

TYPE

DEFAULT

 

 

 

 

31:0

RX Pause Frame

RC

00000000h

 

Count of valid packets (proper length and free of errors) that have a type

 

 

 

field of 8808h and an op-code of 0001(Pause).

 

 

 

Note: This counter will stop at its maximum value of FFFF_FFFFh.

 

 

 

Minimum rollover time at 100Mbps is approximately 481 hours.

 

 

 

 

 

 

 

Note: A bad packet is one that has a FCS or Symbol error.

 

 

Revision 1.4 (08-19-08)

336

SMSC LAN9312

 

DATASHEET